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    How do you calculate the rotational latency of a hard drive?

    May 25, 2021

    Question: If you know the RPM, then how do you calculate the rotational latency?

    Answer: (1 / (RPM / 60)) * 0.5 * 1000

    Or, in other words:

    30000 / RPM

    Result in ms.

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    HDD Wiki

    [EN]: Hard disk drive (HDD), hard disk, hard drive, or fixed disk;
    [FR]: Disque dur (parfois abrégé DD);
    [DE]: Festplattenlaufwerk, Festplatte, Hard Disk (abgekürzt HD);
    [IT]: Disco rigido, disco fisso;
    [ES]: Disco duro, disco rígido;
    [JA]: ハードディスクドライブ;

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